From the back cover:
This map pack collects 48 isometric and perspective maps from the award-winning Trilemma Adventures series. Inside you’ll find dungeons, natural caverns, dusty crypts, underworld cities, ruined towers, secret shrines, and more! Each map is presented as a full-page illustration, ready for you to print. Hook your players with tantalizing maps of fantasy locations, stock them with fiendish challenges of your own design, or use them as inspiration for your own locations.